And, on the edge of the city, ruined buildings stand like ghosts guarding an urban perimeter that keeps expanding, the city always flinging more pieces of itself further into what used to be woods and streams in a spectral ballet of cranes and skyhooks.

So we could roam the streets and suburbs holding cameras, like architectural PKE meters, tracking the profiles of erased buildings, earlier roads, forgotten districts, even entire islands entombed beneath airports, scanning sites for lost towers and halls that once stood there, twisted interiors still hovering somewhere in memory and broken rebar.